What data do you always try to clarify, even if the customer does not voice it? What questions do you ask to make the customer think about what they haven't thought of yet?

It is always important to clarify the following data, even if the client does not mention them:

• Goals and business value of the project: why the product is needed, what problem it solves.
• Key users and their needs.
• Time and budget constraints.
• Success criteria and metrics for evaluating the result.
• Technical limitations and integrations with existing systems.
• Security and confidentiality requirements.

Questions that help the client think more deeply:

• What main usage scenarios do you see for end users?
• What data will be critical for the system's operation?
• Do you have examples of similar solutions or competitors?
• What risks do you see in implementing the project?
• How do you plan to scale or develop the system in the future?

Such questions help identify hidden requirements and expectations, reducing the risks of misunderstanding.